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  4. If I is a unit matrix of order 10 , then determinant of I is equal to:

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Q. If $ I $ is a unit matrix of order $ 10 $ , then determinant of $ I $ is equal to:

Jharkhand CECEJharkhand CECE 2002

Solution:

Determinant of identity matrix of any order is always equal to one. The determinant of a unit matrix of order $ 10 $ is $ 1 $ .